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Diffstat (limited to 'nuttx/sched/mq_internal.h')
| -rw-r--r-- | nuttx/sched/mq_internal.h | 183 |
1 files changed, 0 insertions, 183 deletions
diff --git a/nuttx/sched/mq_internal.h b/nuttx/sched/mq_internal.h deleted file mode 100644 index 6135bfaef..000000000 --- a/nuttx/sched/mq_internal.h +++ /dev/null @@ -1,183 +0,0 @@ -/**************************************************************************** - * sched/mq_internal.h - * - * Copyright (C) 2007, 2009, 2011 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <gnutt@nuttx.org> - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * 3. Neither the name NuttX nor the names of its contributors may be - * used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - ****************************************************************************/ - -#ifndef __SCHED_MQ_INTERNAL_H -#define __SCHED_MQ_INTERNAL_H - -/**************************************************************************** - * Included Files - ****************************************************************************/ - -#include <nuttx/config.h> -#include <nuttx/compiler.h> - -#include <sys/types.h> -#include <stdint.h> -#include <stdbool.h> -#include <limits.h> -#include <mqueue.h> -#include <sched.h> -#include <signal.h> - -#include <nuttx/mqueue.h> - -#if CONFIG_MQ_MAXMSGSIZE > 0 - -/**************************************************************************** - * Definitions - ****************************************************************************/ - -#define MQ_MAX_BYTES CONFIG_MQ_MAXMSGSIZE -#define MQ_MAX_MSGS 16 -#define MQ_PRIO_MAX _POSIX_MQ_PRIO_MAX - -/* This defines the number of messages descriptors to allocate at each - * "gulp." - */ - -#define NUM_MSG_DESCRIPTORS 24 - -/* This defines the number of messages to set aside for exclusive use by - * interrupt handlers - */ - -#define NUM_INTERRUPT_MSGS 8 - -/**************************************************************************** - * Global Type Declarations - ****************************************************************************/ - -enum mqalloc_e -{ - MQ_ALLOC_FIXED = 0, /* pre-allocated; never freed */ - MQ_ALLOC_DYN, /* dynamically allocated; free when unused */ - MQ_ALLOC_IRQ /* Preallocated, reserved for interrupt handling */ -}; - -typedef enum mqalloc_e mqalloc_t; - -/* This structure describes one buffered POSIX message. */ - -struct mqmsg -{ - FAR struct mqmsg *next; /* Forward link to next message */ - uint8_t type; /* (Used to manage allocations) */ - uint8_t priority; /* priority of message */ -#if MQ_MAX_BYTES < 256 - uint8_t msglen; /* Message data length */ -#else - uint16_t msglen; /* Message data length */ -#endif - uint8_t mail[MQ_MAX_BYTES]; /* Message data */ -}; - -typedef struct mqmsg mqmsg_t; - -/**************************************************************************** - * Global Variables - ****************************************************************************/ - -/* This is a list of all opened message queues */ - -extern sq_queue_t g_msgqueues; - -/* The g_msgfree is a list of messages that are available for general use. - * The number of messages in this list is a system configuration item. - */ - -extern sq_queue_t g_msgfree; - -/* The g_msgfreeInt is a list of messages that are reserved for use by - * interrupt handlers. - */ - -extern sq_queue_t g_msgfreeirq; - -/* The g_desfree data structure is a list of message descriptors available - * to the operating system for general use. The number of messages in the - * pool is a constant. - */ - -extern sq_queue_t g_desfree; - -/**************************************************************************** - * Global Function Prototypes - ****************************************************************************/ - -#ifdef __cplusplus -#define EXTERN extern "C" -extern "C" { -#else -#define EXTERN extern -#endif - -/* Functions defined in mq_initialize.c ************************************/ - -EXTERN void weak_function mq_initialize(void); -EXTERN void mq_desblockalloc(void); - -EXTERN mqd_t mq_descreate(FAR _TCB* mtcb, FAR msgq_t* msgq, int oflags); -EXTERN FAR msgq_t *mq_findnamed(const char *mq_name); -EXTERN void mq_msgfree(FAR mqmsg_t *mqmsg); -EXTERN void mq_msgqfree(FAR msgq_t *msgq); - -/* mq_waitirq.c ************************************************************/ - -EXTERN void mq_waitirq(FAR _TCB *wtcb, int errcode); - -/* mq_rcvinternal.c ********************************************************/ - -EXTERN int mq_verifyreceive(mqd_t mqdes, void *msg, size_t msglen); -EXTERN FAR mqmsg_t *mq_waitreceive(mqd_t mqdes); -EXTERN ssize_t mq_doreceive(mqd_t mqdes, mqmsg_t *mqmsg, void *ubuffer, - int *prio); - -/* mq_sndinternal.c ********************************************************/ - -EXTERN int mq_verifysend(mqd_t mqdes, const void *msg, size_t msglen, - int prio); -EXTERN FAR mqmsg_t *mq_msgalloc(void); -EXTERN int mq_waitsend(mqd_t mqdes); -EXTERN int mq_dosend(mqd_t mqdes, FAR mqmsg_t *mqmsg, const void *msg, - size_t msglen, int prio); - -#undef EXTERN -#ifdef __cplusplus -} -#endif - -#endif /* CONFIG_MQ_MAXMSGSIZE > 0 */ -#endif /* __SCHED_MQ_INTERNAL_H */ - |